<div class="mst">
  <nz-alert nzMessage="Warning text" nzBanner></nz-alert>
  <nz-alert
    nzMessage="Very long warning text warning text text text text text text text"
    nzBanner
    nzCloseable
  ></nz-alert>
  <nz-alert
    nzMessage="Warning text without icon"
    nzBanner
    [nzShowIcon]="false"
  ></nz-alert>
  <nz-alert
    nzMessage="Warning text without icon"
    nzBanner
    [nzShowIcon]="false"
  ></nz-alert>
  <nz-alert nzMessage="Error text" nzBanner nzType="error"></nz-alert>
</div>
